CN1278215A - Crown ply reinforcement for heavy vehicle tyre - Google Patents
Crown ply reinforcement for heavy vehicle tyre Download PDFInfo
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- CN1278215A CN1278215A CN98810625A CN98810625A CN1278215A CN 1278215 A CN1278215 A CN 1278215A CN 98810625 A CN98810625 A CN 98810625A CN 98810625 A CN98810625 A CN 98810625A CN 1278215 A CN1278215 A CN 1278215A
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 125
- 230000001681 protective effect Effects 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 66
- 229910000831 Steel Inorganic materials 0.000 description 46
- 239000010959 steel Substances 0.000 description 46
- 239000002184 metal Substances 0.000 description 16
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 239000011324 bead Substances 0.000 description 6
- 230000004323 axial length Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 241000446313 Lamella Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
- B60C9/22—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
- B60C9/2003—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords
- B60C9/2009—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords comprising plies of different materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/1835—Rubber strips or cushions at the belt edges
- B60C2009/1842—Width or thickness of the strips or cushions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10495—Pneumatic tire or inner tube
- Y10T152/10765—Characterized by belt or breaker structure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10495—Pneumatic tire or inner tube
- Y10T152/10765—Characterized by belt or breaker structure
- Y10T152/10801—Structure made up of two or more sets of plies wherein the reinforcing cords in one set lie in a different angular position relative to those in other sets
Abstract
The invention concerns a tyre (P) with radial body ply reinforcement (1) with maximum axial width S0, comprising a crown ply reinforcement (3) formed of at least two working breaker strips (32, 34) of inextensible reinforcing elements, criss-crossed from one breaker strip to the other forming with the circumferential direction angles between 10 DEG and 45 DEG , said breaker strips having axial widths L32, L34 not less than 80 % of the width S0, and, radially arranged between said working breaker strips, an additional breaker (33) made of reinforcing elements substantially parallel to the circumferential direction, the working breaker strips (32, 34) of widths L32, L34 greater than the width L33 of the additional breaker (33) by at least 16 % of the width S0, being on either side of the equatorial plane and in the immediate axial extension of the additional breaker (33) coupled over an axial distance l not less than 3 % of the width S0, to be then separated by a section (4) of rubber mixture with a thickness not less than 2 mm.
Description
The present invention relates to a kind of tire that has the radial carcass reinforcement, on the two edges of carcass reinforcement, this carcass reinforcement is fixed at least one bead steel wire, this carcass reinforcement has at least the crown ply reinforcement that so-called working lining constituted by two stacks, its so-called working lining is made of parallel steel rope or rope on each aspect, on next aspect, intersecting maximum with respect to the circumferencial direction of tire is the angles of 45 degree to absolute value from an aspect for its steel rope or rope.
Particularly relate to a kind of high-capacity tyre, the high H of its wheel rim is 0.8 to the maximum with the ratio of maximum axial width S, and is used to be installed in the high tonnage vehicle of neutralization, such as truck, city motor bus, trailer on the vehicle.
Because the motorway network of improved highway network and world wide development, some so-called at present " express highway " tires are designed to be applicable at a high speed and under the travel condition that extends day by day and travel.Because Tyte Wear is not really severe, require such tire can produce a bigger travelled distance number undoubtedly under the operation under all conditions; On the other hand, the strength at repeated alternation of the strength at repeated alternation of tire and particularly crown ply reinforcement is but bearing the pressure of especially severe.
French Patent (FRP) FR2419185 has solved some problems of this type of tire, it has adopted a low H/S ratio, a lot of facilities have also been brought simultaneously, but it also has some shortcomings, low adhesive ability such as the equatorial plane zone of tyre surface, or the high pressure in the fringe region of tyre surface is too concentrated, because it has reduced area of contact on the longitudinal direction of tire.In order to overcome above-mentioned shortcoming, above-mentioned French Patent (FRP) has been introduced preventive, these preventive are in two zones that are positioned at away from the equatorial plane, and between the inside working lining in footpath that constituted of carcass reinforcement and two stop blocks, each described stop block comprises by two superimposed layers that steel rope constituted that can not extend, this steel rope that can not extend intersects angle with respect to circumferencial direction from an aspect on next aspect, described angle the minimum angles that equals on the working lining on the absolute value to be adopted maximum half, and be not equal to 0 degree.
Solution described above is applied in the tire profile and equals 0.8 than H/S maximum, and particularly maximum equals 0.6, and is applicable to and is installed on " heavily loaded goods vehicle ", but can not make crown ply reinforcement have satisfied strength at repeated alternation.
The deficiency of strength at repeated alternation relates to the both sides strength at repeated alternation of crown layer, particularly relate to anti-division between the two aspect edges, relate to carcass reinforcement be positioned under the described crown ply reinforcement this with on the strength at repeated alternation of steel rope, no matter tire be on the straight-line travelling or turn round travel on, on the working lining edge, often the running temperature that produces has a strong impact on above-mentioned deficiency.
The goal of the invention of French patent application number 94/015736 is to improve the strength at repeated alternation of crown ply reinforcement of the tire of " heavily loaded goods vehicle ", the profile of being somebody's turn to do the tire of " heavily loaded goods vehicle " equals 0.60 than at least, described reinforcement comprises at least two work crown layers being made by the steel rope that can not extend, this steel rope that can not extend is from an aspect to next aspect and circumferencial direction that to intersect angle be that the width of described aspect equaled the maximum axial width S of carcass reinforcement at least between 10 degree were spent to 45
080%.It has proposed the measure taked, first, at carcass reinforcement with radially and then between the working lining of rotating shaft, become the angle of at least 60 degree to constitute an axial continuous aspect by the metal steel rope that can not extend with respect to circumferencial direction, its axial width equals the axial width that casual labourer makes the crown layer at least, second, between described two work crown layers, one extra play that is made of metal piece is arranged, its extra play is arranged to be roughly parallel to circumferencial direction, and above-mentioned extra play axial width equals 0.7S at least
0, and the modulus of elasticity in its when tension equals the modulus of elasticity of maximum working lining of upholding at most.
French patent application number FR96/02178 is intended to reduce the running temperature of " heavily loaded goods vehicle " the type tire that has the radial carcass reinforcement, a kind of effective and economic immediately way is provided simultaneously, introduced an additional crown ply reinforcement on described carcass reinforcement, this crown ply reinforcement comprises at least by not extending the two work crown layers that steel rope constitutes, this can not extend steel rope and be from an aspect to next aspect and circumferencial direction that to intersect angle be between 10 degree are spent to 45, comprise in addition, intersecting under the situation that can not extend the random layer that steel rope constitutes of angle greater than 60 degree by being with circumferencial direction, one axial continuous extra play is arranged, this extra play is made of metal piece, this metal piece is roughly parallel to circumferencial direction, this extra play is radially between described working lining, and the axial width of described extra play equals the axial width of 1.05 times of work crown layers the wideest at least.
It seems that the strength at repeated alternation of problem that divides between two working surfaces and the steel rope in the carcass reinforcement solved under a kind of situation simultaneously, and running temperature has reduced widely under another situation, the tire very long distance of travelling of structure in this way but then, in the steel rope of extra play, particularly on the edge of extra play, no matter whether so-called triangle layer exists, and all can cause occurring the strength at repeated alternation problem.
It is always passable to change related reinforcement, particularly selects the steel rope or the high-tensile steel wires rope of different structure.Though such scheme is simple, often the cost height.
In order to overcome above-mentioned shortcoming, improve this type of related tire crown ply reinforcement strength at repeated alternation and do not increase cost, according to the present invention, have maximum axial width S
0The tire of radial carcass reinforcement comprise a crown ply reinforcement, described crown ply reinforcement comprises by the two work crown layers that reinforcement constituted that can not extend at least, described reinforcement intersects angle from an aspect to next aspect with circumferencial direction and becomes 10 degree to the angle between 45 degree, and the axial width of described each layer is at least width S
080%, and between described working lining radial arrangement, one be parallel to circumferencial direction and the extra play that constitutes by reinforcement roughly, it is characterized in that: the width of two working linings is than the big at least width S of extra play width
016%, be positioned at two working linings on the both sides of the equatorial plane at the tween drive shaft of extra play on epitaxial part, equal width S at least at an axial distance
03.5% length on be coupled, on the total residue width segments of whole two working linings, the aspect of making by a rubber type of material is separated at least.
The thickness in the separation cross section between two aspects is measured from the opposite end of narrow working lining, equals 2mm at least, is preferably greater than 2.5mm.
Term " coupling layer " is construed as multilayer, and its reinforcement is separately opened 1.5mm by radial separation at most, and described rubber thickness is respectively from described reinforcement upper and lower bus radial measurement separately.
Term " parts that can not extend " is construed as parts, steel rope or fiber yarn, when be subjected to pulling force equal disruptive load 10% the time, its relative elongation is not more than 0.2%, under the situation of desirable tire, and the steel rope that the parts that can not extend preferably can not extend.
Reinforcement, steel rope or steel wire rope are arranged to be roughly parallel to circumferencial direction, intersect angle with described circumferencial direction, its angle value around 0 the degree+2.5 the degree to-2.5 the degree scopes in.
Preferably the modulus of elasticity of the tension of extra play equals the maximum modulus of elasticity that extends the tension of working lining at most.The modulus of elasticity of the tension of steel rope aspect depends on the tensile strength that applies along the steel rope direction, needs to obtain a given stretch ratio ε, and described modulus of elasticity is tangential modulus of elasticity." the modulus of elasticity maximum of extra play equals the maximum modulus of elasticity that extends working lining " is construed as the tangential modulus of elasticity of extra play, no matter its relative elongation how, for any tensile strength values, maximum extended layer is exactly to show relative other aspect to have big stretch ratio under same tensile strength.
For the ease of making tire, the modulus of elasticity of extra play should be low like this, so as relative elongation between 0% to 0.4%, equal at most when maximum extend working lining at relative elongation greater than the maximum elastance under 0.4% the pulled out condition.
The general axial width of working lining does not wait; radially the outermost working lining can axially be narrower than radially interior working lining: this additional radial outer for crown reinforced layer is very convenient; this extra play is common said protective cover; it comprises so-called elastic reinforcement part; this elastic reinforcement part is arranged to and circumferencial direction intersects 10 degree to the angle between 45 degree; and have with the narrowest working lining can not extended part constitutes angle direction identical; described protective cover axial width can be less than the axial width of narrow working lining; between two work crown layers, neither cover also not all or part of covering coupling regime.Described protective cover also can have axial width greater than the axial width of narrow working lining, thereby its covers the edge of narrow working lining, and is coupled with the wideest work crown layer on the axial epitaxial part of extra play, and axially coupling length equals width S at least
02%.Thereby, be that the aspect of 2mm is separated out with the wideest working lining outside by thickness.Described protective cover is made of the elastic reinforcement part; under said circumstances; on the one hand; described protective cover can be significantly less than the aspect of the aspect of separating two working lining edges by thickness; be separated with the described edge of narrow workpiece layer; on the other hand, the axial width of described protective cover less than or greater than the axial width of the wideest crown layer.
Except that above-mentioned solution, radially at carcass reinforcement with radially near between the interior working lining of described carcass reinforcement, the triangle layer that constitutes by the reinforcement that can not extend, it is useful adding crown ply reinforcement, the reinforcement that this can not extend and circumferencial direction form greater than 60 degree angles, and with radially the formed angle direction of reinforcement near the layer of described carcass reinforcement is identical.The axial width of described triangle layer can be less than the wideest described working lining width, that is, the wideest working lining under desirable crown ply reinforcement situation, radially the most approaching described carcass reinforcement.The axial width of described triangle layer can also be greater than the wideest described working lining width; yet be convenient to the inside so-called protective cover in footpath is coupled on the wideest working lining; also can on the central epitaxial part of the wideest working lining, be at least 0.02 times of reinforcement width S at axial length
0Length on, be coupled with described triangle layer, thereby, by having the aspect that is at least 2mm, be separated out with the outward flange of described triangle layer.Described protective cover is made of the elastic reinforcement part, as previously mentioned, can be significantly less than the aspect of the aspect of separating two working lining edges by thickness, is separated with the edge of described the narrowest workpiece layer.Described protective cover can also be wider or narrower than described triangle layer.
Described radially outermost working lining can axially be wider than radially interior working lining, this is concerning crown ply reinforcement, help adding in it by the triangle layer that the reinforcement that can not extend constitutes, the described reinforcement that can not extend becomes angles greater than 60 degree with respect to circumferencial direction, and has and streak reinforcement angle equidirectional.So-called triangle layer axial width also, axially approaches most the narrowest working lining that is of carcass reinforcement less than the axial width of narrow working lining.By preferably, the axial width of described triangle layer on the axial epitaxial part of the narrowest working lining, is at least width S at axial distance like this greater than the width of narrow working lining
00.02 on the length doubly, be coupled with the wideest working lining, no matter it is triangle layer or the wideest working lining with maximum width, the aspect of making by the rubber type of material that 2mm is thick at least is separated out with described layer edge.
The firm crown ply reinforcement of describing; the wideest axial working lining away from carcass reinforcement is arranged; it can also be in the footpath of described the wideest working lining to the outside; the protective cover that affix one is made by the elastic reinforcement part; this elastic reinforcement part is arranged to and circumferencial direction intersects 10 degree to the angle between 45 degree; and have with radially the angle direction that parts constituted of wide working lining is identical; described protective cover axial width can be less than the axial width of narrow working lining; described protective cover covers the coupling regime between the two work crown layers whole or in part.Described protective cover also can be wider than the narrowest working lining and be narrower than the wideest working lining; but preferably its axial width radially covers the edge of wide working lining; can be by thickness less than separating the aspect of the narrowest working lining with the aspect at the wideest working lining edge; be separated with described edge; thereby on the axial epitaxial part of the narrowest working lining, be at least width S in the axial length distance
02% length on, with by steeply inclined can not extended part constitutes the inside triangle layer in footpath be coupled, then,, be that the rubber-like aspect of 2mm and the edge of described triangle layer are separated out by thickness no matter it is the triangle layer or the protective cover of broad.
By present description in conjunction with following accompanying drawing, can understand feature and advantage of the present invention more, in nonrestrictive mode some embodiments are described, wherein:
Fig. 1 is one from radial partly, the scheme drawing of preferred first mode of crown ply reinforcement of the present invention;
Fig. 2 shows preferred second mode of the present invention;
Fig. 3 shows Third Way in the same manner.
In Fig. 1, a tyre P that is of a size of 495/45 R, 22.5 X
AHaving shape is 0.45 than H/S, and wherein H is in the tyre P of installing on the wheel rim
AHighly, S is a tyre P
AMaximum axial width.Described tyre P
AComprise a radial carcass reinforcement 1, this reinforcement 1, be fixed at least one bead steel wire, and this reinforcement is made up of the single-layer metal steel rope on each bead by flanging.This carcass reinforcement 1 is waled by a crown ply reinforcement 3, and this crown ply reinforcement radially comprises from the inside to the outside:
-one first so-called triangle layer 31 that is constituted for the metal steel rope that can not extend, its metal steel rope are arranged to become with respect to circumferencial direction 65 ° angle δ;
-one first working lining 32, the footpath that this working lining 32 is positioned at aforesaid so-called triangle layer is upward and with its covering, this working lining is made of the metal steel rope that can not extend, this steel rope is arranged to angle [alpha], be 18 ° under graphic situation, and be identical direction with the angle δ of the parts of triangle layer;
-one extra play 33 that covers on first working lining, 32 tops, this extra play 33 comprises array or several sections steel rope parts, the annular length of each steel rope approximate greatly extra play 33 girth 1/6, and these extra play 33 steel rope spares are arranged to 0 °, are spaced from each other between the each several part simultaneously and do not overlap;
-one second working lining 34, this working lining 34 is by constituting with first working lining, 32 identical metal steel ropes, and the metal steel rope is with respect to circumferencial direction β at an angle, it is opposite with the angle [alpha] direction, in graphic situation, the value of this angle beta equals 18 ° of the values (but the value of angle beta can be not equal to the value of described angle [alpha]) of angle [alpha];
-one so-called elastic wire rope end layer; this elastic wire rope is arranged to respect to the angled γ of circumferencial direction; this angle γ has identical direction with angle beta and equals the value of described angle beta (but the value of angle γ can with the value difference of described angle beta), and the layer of back is a protective cover.
The axial width L of first working lining 32
32Equal the maximum axial width S of middle part fiber of 0.87 times carcass reinforcement 1
0, i.e. 416mm, for the tire of a general shape, this value is significantly less than the width L of tyre surface
1, under situation about being discussed, the wide 430mm that equals of tyre surface.The axial width L of second working lining 34
34Equal 0.83 times maximum axial width S
0, i.e. 400mm.Triangular lamella 31 has a middle axial width L between two working lining 32,34 respective width
31, in the case, this width equals 408mm.The axial width L of extra play 33
33Equal 320mm.In fact, the axial width L of extra play 33
33Less than the narrowest working lining L
32(L
34) width, and the width of capacity can reduce near the running temperature of tire the crown layer end of work effectively, this is to be easy to overheated zone most, and is the isolation layer between two-layer.The width that is referred to as the last crown layer 35 of protective cover approximately waits 370mm.
Each side of face and in the axial epi region of auxiliary layer 33 under the line, two working linings 32 and 34 are coupled on an axial width l, in this case, this width equals 17mm: the steel rope of the steel rope of first working lining 32 and second working lining 34, on two-layer whole axial coupling width l, by one deck rubber layer, separate each other, the thickness of this rubber layer as thin as a wafer, be equivalent to constitute each working lining 32, the bilayer thickness of the rubber layer of 34 snare metal steel rope 27.23, i.e. 0.8mm.Remaining is the total width of two working linings, on each limit, be roughly 20mm, two working linings 32 and 34 are separated by roughly a leg-of-mutton rubber aspect 4, its rubber aspect 4 thickness are increased to the end face of narrow working lining from the axle head in the zone that is coupled, and the thickness of described end face reaches 4mm.Its described aspect 4 has enough radial width, and to cover the end of the wideest working lining 32, in this case, working lining is radially near carcass reinforcement.Described crown ends at tyre surface 5, this tyre surface 5 links to each other with bead by two side 6, radially is adjacent to the described triangle layer of reinforcement 1, under the line on the both sides of face, axially stretch out, described layer links to each other with tyre surface reinforcement 1 by leg-of-mutton rubber aspect 7.
In Fig. 2, be of a size of the tyre P of 315/80 R, 22.5 X
BHaving shape is 0.8 than H/S, and wherein H is in the tyre P of installing on the wheel rim
BHighly, S is a tyre P
BMaximum axial width.Described tyre P
BThe structure of crown ply reinforcement 3 is different from above-mentioned existing structure part and is to lack so-called triangle layer.Therefore, carcass reinforcement 1, be fixed at least one bead steel wire, and this reinforcement comprises the single-layer metal steel rope on each bead by flanging.This carcass reinforcement 1 is waled by a crown ply reinforcement 3, and this crown ply reinforcement 3 radially comprises from the inside to the outside:
-one first working lining 32, this working lining 32 is made of the metal steel rope that can not extend, this steel rope is arranged to angle [alpha], be 18 ° under graphic situation, in the central on the position, its radially adjoining and be parallel to described carcass reinforcement 1, this working lining 32 is separated with described carcass reinforcement mutually by rubber aspect 7, and this rubber aspect 7 increases thickness from the inside to the outside vertically;
-one extra play 33 that covers on first working lining, 32 tops, this extra play 33 comprises interrupted steel rope spare, this steel rope spare is made of the metal piece that can not extend, its annular length approximate greatly extra play 33 girth 1/6, and described steel rope spare is arranged to 0 °, and the outward flange of the described first work crown layer is separated with the extra play 33 of circumferential member mutually by the rubber layer than minimal thickness;
-one second work crown layer 34, this work crown layer 34 is by constituting with first working lining, 32 identical metal steel ropes, and the metal steel rope is with respect to circumferencial direction β at an angle, it is opposite with the angle [alpha] direction, in graphic situation, the value of this angle beta equals 18 ° of the values (but the value of angle beta can be not equal to the value of described angle [alpha]) of angle [alpha].
The axial width L of first working lining 32
32Equal 235mm, that is, under desirable tire conditions, it is slightly smaller than the width of described tyre surface, and under present situation, it equals 235mm.The axial width L of second working lining 34
34Be slightly smaller than L
32Width, be 210mm.The axial width L of extra play 33
33Be 176mm.Working lining 32 and 34 is under the line on the both sides of face, on the epitaxial part of extra play 33, the coupling distance l that 9mm length is arranged, it has represented more smaller than the value of the maximum width of 0.03 times of carcass reinforcement 1, and is identical with the following institute of the front situation boundary that be coupled: as to equal 1mm at the minimum thickness between described all layer under present situation.On each limit, the total residue width of two working linings approximates 6mm greatly, two working linings 32 and 34 are separated by triangle rubber aspect 4, measured thickness is 3mm to this rubber aspect 4 in the end of the narrowest working lining 34, and described rubber aspect 4 constantly thickens the end of narrow working lining extremely along the axial end of coupling regime.Described crown ply reinforcement is additional the most last layer 35 that is made by so-called elastic wire rope; this elastic wire rope is angle γ with respect to circumferencial direction; this angle γ has identical direction with angle beta and equals the value of described angle beta (but can be different); the most last layer 35 is so-called protection layers, and so-called elastic wire rope is the steel rope of an elongation for 4% breaking part.Described layer 35 axial width L
35Be substantially equal to 198mm, can cover the coupling regime between two working linings 32 and 34 like this.
Illustrated in figures 1 and 2 and described embodiment relates to the single coupling regime between two-layer, and shown in Figure 3 has same size with the described tire of first embodiment, and related is the tyre P of two coupling regimes between two-layer
CDescribed tyre P
CCrown ply reinforcement 3 structures be different from tyre P
AThe structure part be:
-the first, wherein two working linings 32 and 34 axial width have reversed;
-the second, wherein two working linings 32,34 are different with the axial width of triangle layer 31, and described extra play 33 has kept same width 320mm, but the width L of the working lining 32 of inner radial
32Be 380mm, and the width L of the working lining 34 of radially outer
34Be 451mm.Like this, width L
31Equal the triangle layer of 431mm, under the line on each limit of face, on the axial epitaxial part of first working lining 32, be substantially equal to the whole width l of 10mm
1Upward be coupled with second working lining 34, the edge of described then triangle layer 31 is that the aspect 4 of 4mm is separated mutually with the wideest working lining 34 by thickness.Described optimal way particularly between the two working lining edges at streak 32 places, has increased the possibility of anti-division.
Although not shown, can imagine tyre P
DWith aforesaid tyre P
CIdentical; it comprises a crown ply reinforcement that has the protective cover also wideer than the wideest working lining, that is, and under ideal conditions; described working lining is away from described carcass reinforcement, and is that the aspect of being made by rubber type of material of 4mm is separated mutually with the edge of described working lining by having thickness.
Claims (11)
1, has maximum axial width S
0The tyre P of radial carcass reinforcement (1), it comprises a crown ply reinforcement (3), described crown ply reinforcement (3) comprises at least by two working linings that reinforcement constituted (32 that can not extend, 34), described reinforcement from an aspect to next aspect and the angle that intersects of circumferencial direction at 10 degree between 45 degree, the axial width L of described each layer
32, L
34Be at least width S
080%, and described reinforcement radial arrangement and between described working lining is basically parallel to the reinforcement extra play (33) of circumferencial direction, it is characterized in that:
The width L of two working linings (32,34)
32, L
34Than extra play (33) width L
33At least big width S
016%, be positioned at two working linings (32,34) on the both sides of the equatorial plane at the center shaft of extra play (33) on epitaxial part, equal width S at least at one
0The length of 3.5% axial distance l on be coupled, on the length of the total residue width segments of whole two working linings (32,34), be separated out at least by an aspect of making by rubber type of material.
2, tire as claimed in claim 1 is characterized in that:
Described aspect (4) equals 2mm at least in the narrowest working lining (32,34) end portion thickness.
3, tire as claimed in claim 2 is characterized in that:
Two workpiece layers (32 of described crown ply reinforcement (3); 34) axial width does not wait; radially outer working lining (34) axially is narrower than and places inner radial working lining (32); on direction radially outward; described crown ply reinforcement (3) also comprise one by the elastic reinforcement part make the layer (35); this elastic reinforcement part is 10 degree to the angles of 45 degree and identical with the direction of the angle that parts constituted that can not extend of the narrowest working lining (34), the axial width L of described protective cover (35) with respect to circumferencial direction
35Axial width L less than the narrowest working lining (34)
34
4, tire as claimed in claim 2 is characterized in that:
Two workpiece layers (32 of described crown ply reinforcement (3), 34) axial width does not wait, radially outer working lining (34) axially is narrower than and radially places in-to-in working lining (32), described crown ply reinforcement (3) also comprises a radial outer (35) of being made by the elastic reinforcement part, this elastic reinforcement part is 10 degree to the angles of 45 degree and identical with the direction of the formed angle of parts that can not extend of the narrowest working lining (34) with respect to circumferencial direction, and described radial outer (35) has axial width L
35, so that it can radially cover the edge of the narrowest working lining (34), on the axial epitaxial part of extra play, the narrowest working lining (34) equals width S at least at width
0An axial distance of 2% on be coupled with the wideest work crown layer (32), thereby, in the axial outside, separate by 2mm is thick at least aspect (4) and the wideest described working lining (32).
5, tire as claimed in claim 4 is characterized in that:
Be significantly less than the aspect of the aspect (4) of separating two working linings (32,34) edge by thickness, will be separated out with the narrowest described working lining (32) edge by the protective cover (35) that the elastic reinforcement part constitutes.
6, as the described tire of one of claim 1 to 5, it is characterized in that:
Described crown ply reinforcement (3) comprises one in addition in inner radial, between carcass reinforcement (1) and inner radial working lining (32), by not extending reinforcement constitute the layer (31), described not extending reinforcement is spent greater than 60 with respect to the angle that circumferencial direction constituted, and identical with the angle direction of the reinforcement of described working lining (32), described layer (31) axial width L
31Axial width L less than the wideest working lining (32)
32
7, tire as claimed in claim 5 is characterized in that:
Described crown ply reinforcement (3) also comprises one in inner radial, between carcass reinforcement (1) and inner radial working lining (32), by not extending reinforcement constitute the layer (31), described not extending reinforcement is spent greater than 60 with respect to the angle that circumferencial direction constituted, and identical with the angle direction of the reinforcement of described working lining (32), the axial width L of layer (31)
31Axial width L greater than the wideest working lining (32)
32, described protective cover (35) is coupled with the wideest working lining (32), and the width of described protective cover (35) is L
35, make it can also be on epitaxial part, a width S that is at least 0.02 times of carcass reinforcement (1) at the center shaft of the wideest working lining (32)
0Axial distance l " length on, be coupled with described triangle layer (31), thereby, in the axial outside, be separated for the edge of the aspect of 2mm (4) at least with described triangle layer (31) by thickness.
8, tire as claimed in claim 2 is characterized in that:
Two working linings (32 of described crown ply reinforcement (3), 34) width does not wait, radially outermost working lining (34) axially is wider than radially interior working lining (32), described crown ply reinforcement (3) also comprises one by the layer (31) that reinforcement constituted that can not extend, this reinforcement that can not extend is greater than 60 degree angles with respect to the circumferencial direction angle, and identical with the direction of the angle that reinforcement constituted of the narrowest working lining (32), the axial width L of described layer
31Width L less than streak (32)
32
9, tire as claimed in claim 2 is characterized in that:
Two working linings (32 of described crown ply reinforcement (3), 34) width does not wait, radially outermost working lining (34) axially is wider than radially interior working lining (32), described crown ply reinforcement (3) also comprises one by the triangle layer (31) that reinforcement constituted that can not extend, this reinforcement that can not extend is greater than 60 degree angles with respect to the circumferencial direction angle, and identical with the direction of the angle that reinforcement constituted of the narrowest working lining (32), the width L of described triangle layer
31Width L greater than the narrowest working lining (32)
32, have broad width L
34Working lining (34) on the central epitaxial part of working lining (32), at an axial distance l
1It is 0.02 times of carcass reinforcement width S
0Length on, be coupled with triangle layer (31), thereby, in the axial outside, be separated for the edge of the aspect of 2mm (4) at least with described triangle layer (31) by thickness.
10, as the described tire of one of claim 8 to 9, it is characterized in that:
Described crown ply reinforcement (3) comprises one radially at the exterior protective cover (35) that is made of the elastic reinforcement part of the wideest working lining (34); this elastic reinforcement part is arranged to and circumferencial direction is 10 degree to the angle between 45 degree, and direction is identical with the direction of the angle that parts constituted that can not extend of the wideest working lining (34).
11, tire as claimed in claim 10 is characterized in that:
Described crown ply reinforcement (3) comprises one radially at the exterior protective cover (35) that is made of the elastic reinforcement part of the wideest working lining (34); this elastic reinforcement part is arranged to and circumferencial direction be angle be 10 the degree to 45 the degree between; and direction is identical with the direction of the angle that parts constituted that can not extend of the wideest working lining (34), and described layer (35) has axial width L
35, it can radially cover the edge of the wideest working lining (34) like this, and on the central epitaxial part of the narrowest working lining (32), it equals to be width S at least at width
02% bevelled axial distance l
2Length on be coupled by the layer (31) that elastic component constituted that can not extend with the footpath is inside, thereby, be separated out by rubber-like aspect and the described triangle working lining edge that 2mm is thick at least.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9714011A FR2770458B1 (en) | 1997-11-05 | 1997-11-05 | SUMMIT FRAME FOR TIRE-HEAVY TIRE |
| FR97/14011 | 1997-11-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1278215A true CN1278215A (en) | 2000-12-27 |
| CN1102507C CN1102507C (en) | 2003-03-05 |
Family
ID=9513151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98810625A Expired - Lifetime CN1102507C (en) | 1997-11-05 | 1998-10-27 | Crown ply reinforcement for heavy vehicle tyre |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US6401778B1 (en) |
| EP (1) | EP1028858B1 (en) |
| JP (1) | JP4354114B2 (en) |
| KR (1) | KR100747419B1 (en) |
| CN (1) | CN1102507C (en) |
| BR (1) | BR9813963A (en) |
| CA (1) | CA2308037C (en) |
| DE (1) | DE69803599T2 (en) |
| ES (1) | ES2172236T3 (en) |
| FR (1) | FR2770458B1 (en) |
| RU (1) | RU2205107C2 (en) |
| WO (1) | WO1999024269A1 (en) |
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| FR3136401A1 (en) | 2022-06-09 | 2023-12-15 | Compagnie Generale Des Etablissements Michelin | TIRE COMPRISING A TOP REINFORCEMENT WITH METAL REINFORCEMENTS |
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| JPS6144006A (en) * | 1984-08-07 | 1986-03-03 | Bridgestone Corp | Belt construction of radial tire |
| JPH05238206A (en) * | 1992-02-28 | 1993-09-17 | Bridgestone Corp | Pneumatic tire |
| FR2728510A1 (en) * | 1994-12-23 | 1996-06-28 | Michelin & Cie | T / H SHAPE TIRE LESS THAN OR EQUAL TO 0.6 |
| JPH08175107A (en) * | 1994-12-27 | 1996-07-09 | Bridgestone Corp | Pneumatic tire |
| FR2730456A1 (en) * | 1995-02-13 | 1996-08-14 | Michelin & Cie | TOP FRAME FOR RADIAL TIRES |
| JP3606975B2 (en) * | 1995-12-22 | 2005-01-05 | 株式会社ブリヂストン | Pneumatic radial tire |
-
1997
- 1997-11-05 FR FR9714011A patent/FR2770458B1/en not_active Expired - Fee Related
-
1998
- 1998-10-27 ES ES98954450T patent/ES2172236T3/en not_active Expired - Lifetime
- 1998-10-27 WO PCT/EP1998/006798 patent/WO1999024269A1/en active IP Right Grant
- 1998-10-27 JP JP2000520315A patent/JP4354114B2/en not_active Expired - Lifetime
- 1998-10-27 CA CA002308037A patent/CA2308037C/en not_active Expired - Fee Related
- 1998-10-27 DE DE69803599T patent/DE69803599T2/en not_active Expired - Lifetime
- 1998-10-27 EP EP98954450A patent/EP1028858B1/en not_active Expired - Lifetime
- 1998-10-27 CN CN98810625A patent/CN1102507C/en not_active Expired - Lifetime
- 1998-10-27 RU RU2000114192/28A patent/RU2205107C2/en not_active IP Right Cessation
- 1998-10-27 BR BR9813963-0A patent/BR9813963A/en not_active IP Right Cessation
- 1998-10-27 KR KR1020007004888A patent/KR100747419B1/en not_active IP Right Cessation
-
2000
- 2000-04-17 US US09/550,667 patent/US6401778B1/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100457477C (en) * | 2003-09-18 | 2009-02-04 | 米其林技术公司 | Reinforcement layer for a tyre tread |
| CN100540341C (en) * | 2004-05-13 | 2009-09-16 | 米其林技术公司 | Heavy vehicle tyre |
| CN101213092B (en) * | 2005-06-30 | 2011-05-18 | 米其林技术公司 | Tyre for heavy vehicle |
| CN101657334B (en) * | 2007-02-06 | 2012-09-05 | 米其林技术公司 | Tyre for heavy vehicles |
| CN103108756B (en) * | 2010-09-21 | 2015-11-25 | 米其林集团总公司 | Comprise the tire of protection reinforcement |
| CN103108756A (en) * | 2010-09-21 | 2013-05-15 | 米其林集团总公司 | Tyre comprising a protective reinforcement |
| CN103889738A (en) * | 2011-10-13 | 2014-06-25 | 米其林集团总公司 | Tyre comprising a layer of circumferential reinforcing elements |
| CN103889738B (en) * | 2011-10-13 | 2016-08-03 | 米其林集团总公司 | Tire including the layer of circumference reinforcing element |
| CN105992697A (en) * | 2013-11-28 | 2016-10-05 | 米其林集团总公司 | Reinforcing element having a flattened cross-section |
| CN105992697B (en) * | 2013-11-28 | 2017-09-05 | 米其林集团总公司 | Reinforcing element with flat cross section |
| CN108367601A (en) * | 2015-12-16 | 2018-08-03 | 米其林集团总公司 | Tire with improved polishing machine |
| CN108367601B (en) * | 2015-12-16 | 2020-09-29 | 米其林集团总公司 | Tyre with improved wear properties |
| CN113646185A (en) * | 2019-03-29 | 2021-11-12 | 米其林集团总公司 | Tyre crown reinforcement consisting of two working crown layers and of a layer of circumferential reinforcing elements |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2770458B1 (en) | 1999-12-03 |
| FR2770458A1 (en) | 1999-05-07 |
| US6401778B1 (en) | 2002-06-11 |
| ES2172236T3 (en) | 2002-09-16 |
| WO1999024269A1 (en) | 1999-05-20 |
| KR100747419B1 (en) | 2007-08-09 |
| DE69803599T2 (en) | 2002-09-19 |
| CA2308037A1 (en) | 1999-05-20 |
| CN1102507C (en) | 2003-03-05 |
| RU2205107C2 (en) | 2003-05-27 |
| JP4354114B2 (en) | 2009-10-28 |
| EP1028858A1 (en) | 2000-08-23 |
| JP2001522748A (en) | 2001-11-20 |
| EP1028858B1 (en) | 2002-01-23 |
| KR20010031818A (en) | 2001-04-16 |
| BR9813963A (en) | 2000-09-26 |
| DE69803599D1 (en) | 2002-03-14 |
| CA2308037C (en) | 2006-12-19 |
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Granted publication date: 20030305 |